Improvement in lamp-brackets



J. W. BIRCH.

LAMP-BRACKETS.

Patented Sept. 25, 1877.

-PEIEflS, PHOTO-LITHOGRAFHER, WASNINGTON. D C.

,melodeons, and other musical instruments of JOSEPH W.. BIRCH, or NEWYORK,

PATENT QFFIGE.

N. Y., ASSIGNOR OF ONE-HALF HIS RIGHT TO ISAAC H. HOLMES, OF SAME PLACE.

IMPROVEMENT IN LAMP-BRACKETS.

Specification forming pa'rt of Letters Patent No. 195,564, datedSeptember 25, 1877 application filed August 20,1877.

Be it known that I, JOSEPH W. BIRCH, of the city, county, and State ofNew York, have invented certain newa'nd useful Improvements inLamp-Brackets, of which invention the following is a specification:

In the drawings, which form an essential part of this specification,Figure 1 is a side elevation of an apparatus in which is fully embodiedmy invention. Fig. 2 is a front elevation of the same. Fig. 3 is also aside elevation, showing the apparatus as used for a library or studentslamp; and Fig. 4 is a detached view of the clasp.

The same letters of reference marked in the various figures of thedrawings will locate and designate corresponding parts.

The object of this invention is to provide a light portable apparatusfor temporary attachment to the music-racks of pianos, organs,

that class, which apparatus shall carry at its apex a suitable lamp andreflector so arranged that when the apparatus is applied to themusic-rack the light is thrown directly upon the pages of music, theconstruction of the apparatus being such that it can be attached to anypart of the music-rack, and its position changed at will. It is alsoprovided with a base so arranged that it will stand upright, making theapparatus very useful for all the purposes desired in a students orlibrary lamp.

The base of the apparatus consists of an ornamental bifurcated archedbody, A, which is permanent, and at its apex carries a flat or ovaltube-post, B, of such length as may be required for the purpose. Thistube B may be attached to the body A in any approved manner, asmechanical skill may dictate. It is shown as applied over a stud, (1,(seen in dotted lines in Fig. 2,) being driven thereupon and soldered orpinned to make it permanent. Within the two arms of the body or baseA isarranged an auxiliary arm, D, which is attached to the base A centrallyby means of a screw, pin, or bolt, on, the arrangement being such thatit may be swung to right angles with the position of the base A, inwhich position the two form four legs or feet, and thus give a solidimmovable support for the apparatus when it is in use as a studentortable lamp. The normal position of this arm D is parallel with thebase A, as shown plainly in Figs. 1 and 2.

F is the lamp, which is preferably made of metal, and may be of anyapproved form that is suited for the purpose. It has attached to itsrear a small trifurcated bracket, formed as shown in Figs. 1 and 3, armb thereof (seen in dotted lines) forming a tongue upon which thereflector G is supported, arm 0, which is inclined as shown, forming atongue by which to attach the lamp to the tube-post B when the apparatusis to be applied to the musicrack of an instrument, the third arm, D,forming a tongue by means of which to attach the lamp to the post B whenthe apparatus is to be used as a library or students lamp. Arm or tongue0 is provided with aspring, e, which serves to hold the tongue in theapex of the tube-post B firmly, and prevents the lamp from shaking. Thetongues b and (1 may be likewise provided with similar springs, if sodesired.

The reflector G has attached to its rear a socket corresponding to thetongue b of the bracket, over which it is applied when the apparatus isin use.

H is an adjustable sleeve-clasp, which is applied over the tube-post B,the office of which is, by means of the various attachments, to securethe apparatus to the music-rack I. The music-rack is shown in dottedlines in Figs. 1 and 2. It is made square in form, and large enough toreadily slide upon the tubepost B. It has a depending arm in front, andat the rear a flat arched spring, g, is attached, said spring having twoarms, h and i, arm h projecting above and arm 13 below the body H of thesleeve-clasp.

The position of the apparatus and the mode of application to themusic-rack are plainly illustrated in Figs. 1 and 2. The baseA of theapparatus resting upon the instrument directly in the rear of themusic-rack I, the post B taking an inclined position conforming to theincline of the music-rack, the sliding clasp H is then slipped down, itsdepending arm f passing over the face of the music-rack. The sleeve H isthus pulled forward the width of the rack I, which movement, of course,compresses the two arms of the spring g against the post B. This actionserves to hold the arm f tightly to the face of the music-rack, and thussecuring the apparatus in place.

When the apparatus is to be used as a student or table lamp the tongue dis used in attaching the lamp to the top of the tube-post B, which, ofcourse, brings it to a right-angular position in relation to thetube-post B. The swinging arm D of the base is then placed at rightangles with the base A, and the apparatus is ready for use as atable-lamp, as illustrated in Fig. 3.

Having thus fully described my invention, what I claim as new is- 1. Ina lamp bracket or support, the combination of the fixed base A, carryingthe supporting tube-post B, the sliding adjustable clasp H, and thetrifurcated bracket K, having tongues b and 01 attached to the lamp F,and by means of which the reflector is supported and the lamp attachedto the supporting tube-post B, the whole arranged and operating as andfor the purposes substantially as herein shown and set forth.

2. In a lamp bracket or support, the combination of the fixed base A,having auxiliary swinging arm D, tube-post B, attached to base A, thesliding adjustable clasp H, and the trifurcated bracket K, havingtongues b and 0 attached to the lamp F, and by means of which thereflector is supported and the lamp attached to the apex of thesupporting-post B, the whole arranged and operating as and for thepurposes substantially as herein shown and set forth.

3. The trifnrcated bracket K, having arms or fingers b, c, and dattached to the lamp F, and operating as and for the purposes as hereinshown and set forth.

4. The adjustable sliding clasp H, having arm f depending from its face,and arched spring g, having arms h and 0' attached to its rear, thewhole arranged to slide upon the tube-post B, in the manner and for thepurposes as herein shown and described.

JOSEPH W. BIRCH.

In presence of- A. L. MUNSON, E. G. WARD.

